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Finding the Third Proportional to 5,217,405 and 6,860,862

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Solution

The third proportional to 5,217,405 and 6,860,862 is: 9,021,999.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217,405 : 6,860,862 = 6,860,862 : x
  2. Step 2: Convert to fraction form
    5,217,405/6,860,862 = 6,860,862/x
  3. Step 3: Cross multiply
    5,217,405x = 6,860,862 × 6,860,862
  4. Step 4: Simplify right side
    5,217,405x = 47,071,427,383,044
  5. Step 5: Solve for x
    x = 47,071,427,383,044/5,217,405
  6. Step 6: Final answer
    x = 9,021,999.90

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.